124 lines
3.0 KiB
ANTLR
124 lines
3.0 KiB
ANTLR
parser grammar ExprSyntactic;
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options {
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tokenVocab=ExprLexer;
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}
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identifier: IDENTIFIER;
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qualifiedIdentifier: identifier {'.' identifier};
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literal: IntegerLiteral
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| FloatingPointLiteral
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| CharacterLiteral
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| StringLiteral
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| BooleanLiteral
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| NullLiteral;
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expression: expression1 [assignmentOperator expression1];
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assignmentOperator: Assignment
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| AddAssign
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| SubtractAssign
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| MultiplyAssign
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| DivideAssign
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| BitwiseANDAssign
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| BitwiseORAssign
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| BitwiseXORAssign
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| RemainderAssign
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| LeftShiftAssign
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| SighnedRightShiftAssign
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| UnsighnedRightShiftAssign;
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type: identifier {'.' identifier} bracketsOpt
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| basicType;
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statementExpression: expression;
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constantExpression: expression;
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expression1: expression2 [expression1Rest];
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expression1Rest: ['?' expression ':' expression1];
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expression2: expression3 [expression2Rest];
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expression2Rest: {infixop expression3}
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| expression3 INSTANCEOF type;
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infixop: ConditionalOR
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| ConditionalAND
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| BitwiseOR
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| BitwiseXOR
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| BitwiseAND
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| EqualTO
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| NotEqualTO
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| LessThan
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| GreterThan
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| LessThanEqualTo
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| GreaterThanEqualTo
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| LeftShift
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| SignedRightShift
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| UnsignedRightShift
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| Addition
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| Subtraction
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| Multiplication
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| Division
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| Remainder;
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expression3: prefixOp expression3 // Recursion
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| (expr | type) expression3
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| primary {selector} {postfixOP};
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primary: (expression)
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| This [arguments]
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| Super superSuffix
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| literal
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| New creator
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| identifier {'.' identifier} [identifierSuffix]
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| basicType bracketsOpt '.'Class
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| Void '.' Class;
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identifierSuffix: '['(']' bracketsOpt '.' Class '/' expression ']')
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| arguments
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|'.' '(' Class '/' This '/' Super arguments '/' New innerCreator ')';
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// confused about this need to ask prof
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prefixOp: Increment
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| Decrement
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| LogicalComplement
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| BitWiseComplement
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| Addition
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| Subtraction;
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postfixOp: Increment | Decrement;
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selector: '.' identifier [arguments]
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| '.' This
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| '.' Super superSuffix
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| '.' New innerCreator
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| [expression];
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superSuffix: arguments
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| '.' identifier [arguments];
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basicType: Byte
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| Short
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| Char
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| Int
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| Long
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| Float
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| Double
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| Boolean;
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argumentsOpt: [arguments];
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arguments: '(' [expression {',' expression}] ')';
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bracketsOpt: {'[' ']'}; //ask prof.
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creator: qualifiedIdentifier ( arrayCreatorRest | classCreatorRest);
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innerCreator: identifier classCreatorRest;
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arrayCreatorRest: '[' ( ']' bracketsOpt arrayInitializer | expression ']' {[expression]}; |